70871619113 has 2 divisors, whose sum is σ = 70871619114. Its totient is φ = 70871619112.

The previous prime is 70871619109. The next prime is 70871619139. The reversal of 70871619113 is 31191617807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70099446169 + 772172944 = 264763^2 + 27788^2 .

It is a cyclic number.

It is not a de Polignac number, because 70871619113 - 2² = 70871619109 is a prime.

It is not a weakly prime, because it can be changed into another prime (70871619163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35435809556 + 35435809557.

It is an arithmetic number, because the mean of its divisors is an integer number (35435809557).

Almost surely, 2^70871619113 is an apocalyptic number.

It is an amenable number.

70871619113 is a deficient number, since it is larger than the sum of its proper divisors (1).

70871619113 is an equidigital number, since it uses as much as digits as its factorization.

70871619113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 44.

The spelling of 70871619113 in words is "seventy billion, eight hundred seventy-one million, six hundred nineteen thousand, one hundred thirteen".